3 Works

Increasing morphological disparity and decreasing optimality for jaw speed and strength during the radiation of jawed vertebrates

William Deakin, Philip Anderson, Wendy Den Boer, Thomas Smith, Jennifer Hill, Martin R├╝cklin, Philip Donoghue & Emily Rayfield
The Siluro-Devonian adaptive radiation of jawed vertebrates, which underpins almost all living vertebrate biodiversity, is characterised by the evolutionary innovation of the lower jaw. Multiple lines of evidence have suggested that the jaw evolved from a rostral gill arch, but when the jaw took on a feeding function remains unclear. We quantified the variety of form in the earliest jaws in the fossil record and , from which we generated a range of theoretical morphospacelogies...

Echinoderm sperm swimming and fertilization

Mike Nishizaki, Sara Leuchtenberger, Maris Daleo, Peter Gullickson, Andi Delgado & Carly Lo
In an era of climate change, impacts on the marine environment include warming and ocean acidification. These effects can be amplified in shallow coastal regions where conditions often fluctuate widely. This type of environmental variation is potentially important for many nearshore species that are broadcast spawners, releasing eggs and sperm into the water column for fertilization. We conducted two experiments to investigate: 1) the impact of water temperature on sperm swimming characteristics and fertilization rate...

Data accompanying Polyphenisms and polymorphisms: genetic variation in plasticity and color variation within and among bluefin killifish populations

Rebecca Fuller, Joseph Travis, Benjamin Sandkam, Katherine McGhee & Matthew Schrader
The presence of stable color polymorphisms within populations begs the question of how genetic variation is maintained. Consistent variation among populations in coloration, especially when correlated with environmental variation, raises questions about whether environmental conditions affect either the fulcrum of those balanced polymorphisms, the plastic expression of coloration, or both. Color patterns in male bluefin killifish provoke both types of questions. Red and yellow morphs are common in all populations. Blue males are more common...

Registration Year

  • 2022
    3

Resource Types

  • Dataset
    3

Affiliations

  • University of Illinois System
    3
  • University of Washington
    1
  • Texas A&M University
    1
  • Smithsonian Institution
    1
  • University of Minnesota System
    1
  • Carleton College
    1
  • University of Bristol
    1
  • Naturalis Biodiversity Center
    1
  • Cornell University
    1
  • Washington State University
    1